/*******************************************************************************
* Copyright (c) 2007 Red Hat, Inc.
* Distributed under license by Red Hat, Inc. All rights reserved.
* This program is made available under the terms of the
* Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.jboss.tools.common.el.internal.core.model;
import java.util.ArrayList;
import java.util.List;
import org.jboss.tools.common.el.core.model.ELExpression;
import org.jboss.tools.common.el.core.model.ELInvocationExpression;
import org.jboss.tools.common.el.core.model.ELMultiExpression;
import org.jboss.tools.common.el.core.model.ELObject;
import org.jboss.tools.common.el.core.model.ELObjectType;
/**
* expression (operation expression)+
* @author V. Kabanovich
*/
public class ELMultiExpressionImpl extends ELExpressionImpl implements ELMultiExpression {
List<ELExpression> expressions = new ArrayList<ELExpression>();
List<ELOperatorImpl> operators = new ArrayList<ELOperatorImpl>();
public ELMultiExpressionImpl() {
}
public List<ELExpression> getExpressions() {
return expressions;
}
public List<ELOperatorImpl> getOperators() {
return operators;
}
public void addChild(ELObjectImpl child) {
if(child instanceof ELExpressionImpl) {
addExpression((ELExpressionImpl)child);
} else if(child instanceof ELOperatorImpl) {
addOperator((ELOperatorImpl)child);
} else {
throw new IllegalArgumentException("EL instance can have only EL expression as child."); //$NON-NLS-1$
}
}
public void addExpression(ELExpressionImpl expression) {
if(expressions.size() > operators.size()) {
throw new IllegalArgumentException("Expecting operator"); //$NON-NLS-1$
}
super.addChild(expression);
expressions.add(expression);
}
public void addOperator(ELOperatorImpl operator) {
while(expressions.size() <= operators.size()) {
addChild(new ELExpressionImpl() {
public ELObjectType getType() {
return ELObjectType.EL_UNKNOWN;
}
});
}
super.addChild(operator);
operators.add(operator);
}
public String toString() {
StringBuffer sb = new StringBuffer();
if(children != null) for (ELObject c: children) {
sb.append(c.toString());
}
return sb.toString();
}
public ELObjectType getType() {
return ELObjectType.EL_MULTI_EXPRESSION;
}
public void collectInvocations(List<ELInvocationExpression> list) {
for (ELExpression expr: expressions) {
((ELExpressionImpl)expr).collectInvocations(list);
}
}
}